There at least five reasons to note as to why it is important to believe that Jesus was miraculously conceived of a virgin.*

First, it is important for the trustworthiness of the Gospel records.Luke claimed that he wrote his gospel “having investigated everything carefully from the beginning” (Luke 1:3). If he was wrong concerning Jesus’ conception, he could have been wrong in other areas as well. Matthew would have been wrong as well (Matt 1:23; cf. Isa 7:14). Not only could we trust neither Luke nor Matthew, but we could not fully trust the entirety of the Scriptures as well. If two authors are wrong, what’s to say the others aren’t wrong as well?

Second, it is important for Jesus’ sinlessness.Let’s suppose someone could be born of a virgin today. They would still be born as a sinner, having inherited their sinfulness from the mother. Conception does not make someone sinful only by means of the fact that there is a father. The Spirit’s role in Mary’s conception guaranteed that Jesus would be sinless. The Holy Spirit of God could not work a miraculous conception and leave the conceived as an unholy sinner.

Third, it is important for our salvation.If Jesus was not sinless, we would have no true substitute on the cross. If Jesus was a sinner, He would have been only a man and would have needed someone who was both God and Man to die for Him.

Fourth, it is important for the protection of Jesus (and Mary) from the blasphemous alternative, which is a string of outright lies.Jesus claimed to have come from heaven (John 6:41–42). Mary claimed to be a virgin (Luke 1:34). Both our Savior and His earthly mother would be liars if this miracle were not true.

Fifth, it is important for the only correct theological explanation concerning the personality of Jesus.Jesus was fully God and fully man, not half and half or a fusion of the two that created something more than human but less than God. He was not God who only appeared to be a man or man who only appeared to be God. Though we cannot completely comprehend the complexities of Jesus’ personality, we at least know that God and Man could be one in Jesus by means of Jesus’ miraculous conception.